CN201184799Y - Flow sensor and installation component thereof - Google Patents
Flow sensor and installation component thereof Download PDFInfo
- Publication number
- CN201184799Y CN201184799Y CNU200720170903XU CN200720170903U CN201184799Y CN 201184799 Y CN201184799 Y CN 201184799Y CN U200720170903X U CNU200720170903X U CN U200720170903XU CN 200720170903 U CN200720170903 U CN 200720170903U CN 201184799 Y CN201184799 Y CN 201184799Y
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- flow sensor
- expiration
- wall surface
- spiral cover
- gas flow
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- Expired - Lifetime
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- 238000009434 installation Methods 0.000 title claims description 18
- 230000003434 inspiratory effect Effects 0.000 claims description 47
- 239000011324 bead Substances 0.000 claims description 8
- 230000000295 complement effect Effects 0.000 claims description 5
- 230000002265 prevention Effects 0.000 abstract 3
- 238000005070 sampling Methods 0.000 abstract 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 210000000664 rectum Anatomy 0.000 description 11
- 238000005259 measurement Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 206010002091 Anaesthesia Diseases 0.000 description 4
- 230000037005 anaesthesia Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000000870 hyperventilation Effects 0.000 description 1
- 208000000122 hyperventilation Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a flow sensor, and a flow sensor mounting element. The flow sensor comprises a casing and a film. The casing has an inner wall surface and an external wall surface. The inner wall surface encloses an axially perforated casing cavity. The casing also has two pressure sampling ports both communicating with the casing wall and radially penetrating the inner wall surface and the external wall surface. The film is arranged in the casing cavity. The two sampling ports are respectively formed on both sides of the film in the axial direction. The external wall surface of the casing has a first cooperation section and a second cooperation section, and the second cooperation section is equipped with a wrong mounting prevention piece. An expiratory flow sensor and a suction gas flow sensor are both equipped with the wrong mounting prevention pieces, and the corresponding expiratory end and the suction gas end thereof are also equipped with the compatible wrong mounting prevention pieces to realize positioning and prevent wrong mounting of the expiratory flow sensor and the suction gas flow sensor. The flow sensor has no need of recalibration after being assembled and disassembled, cleaned and sterilized, and no need of arranging a chip, and can prevent wrong mounting and reduce cost through only a simple mechanical structure.
Description
Technical field
The utility model relates to the flow sensor field, especially about a kind of differential flow sensor and installation component thereof.
Background technology
In the breathing circuit of Anesthesia machine, flow sensor is used for monitoring the flow of the common gas among the patient circuit and the volume that patient sucks, and come FEEDBACK CONTROL to make actual value near setting value by these monitor values, reach to patient and fully ventilate and the purpose of hyperventilation not.Be applied in flow sensor in the anesthesia respirator hot wire type, turbine type, differential or the like are arranged.The principle of hot wire type's flow sensor is by the influence of air-flow to hot-wire temperature's height, judge the size of gas flow rate, but this sensor has following shortcoming: dismounting is cleaned or is needed to utilize the method for high temperature sintering to calibrate after use a period of time, and calibration need bring injury to sensor itself, cause serviceable life short, realize difficulty simultaneously, cost an arm and a leg.The principle of turbine type flow sensor is that gas flow rate makes turbine produce rotating speed, the speed of the size decision turbine rotation of air-flow, but this sensor has following shortcoming: inaccurate when surveying low discharge, and be subjected to the influence of moisture very big.Differential flow sensor obtains the size of flow velocity by the gas differential pressure of measuring 2 of latus rectum front and back, the pressure type flow quantity sensor has that making is simple relatively, antijamming capability is strong, good reliability and measure advantage accurately, is adopted by More and more factories.
Differential flow sensor is divided into two kinds of constant aperture and variable apertures.In the use of differential flow sensor, what use in early days is constant aperture, promptly at less relatively latus rectum of sensor intermediate settings, thereby produces pressure reduction and measurement flow rate in front and back, and its making simply, reliably.According to himself measurement range of the size of middle latus rectum decision, when latus rectum is big, more true when surveying big flow velocity than calibration; When latus rectum hour, it is more true than calibration to survey minimum velocity.Determined that like this range of measurement of constant aperture flow sensor is limited, surveyed Low tidal volume or big tidal volume is inaccurate.The constant aperture flow sensor that had development to be fit to for adult, children even neonate afterwards makes the scope of different patients or tidal volume adopt the flow sensor of different big or small latus rectums, but has brought the trouble of changing.
Application based on this variable aperture differential pressure flow sensor is increasingly extensive, and the principle of variable aperture is that latus rectum is bigger when surveying big flow velocity, and latus rectum is less when surveying minimum velocity, thereby has widened the scope of measuring greatly, reaches the accurate measurement of wide range.Existing variable aperture differential pressure flow sensor is that the diaphragm that can swing is installed on latus rectum, and the size of air-flow influences the size (promptly controlling the size of latus rectum simultaneously) of diaphragm swing, realizes that different tidal volumes has different latus rectum sizes.But because the consistance that variable aperture diaphragm type flow sensor is made is difficult to guarantee that just can use through initial alignment, present most of manufacturers adopt a variable aperture diaphragm type flow sensor, and it is used in exhale end or suction end.Adopt incoming call, two diaphragm flow sensors of exhalation for some high-end numb Anesthesia machines, lung ventilator product, be used for respectively monitoring and control, but in dismounting, when cleaning finishes, if respiratory air flow quantity sensor dress is anti-, will cause measuring inaccurate, need calibration respectively to reuse,, will cause the deviation of tidal volume and improve patient is produced the risk of harm if do not calibrate.Though there are many machines that automatic calibration function all is provided, but need the operator quite familiar to machine, and carry out more corresponding connections and the cost regular hour just can finish, in order to solve the anti-problem of adorning, the flow sensor that has carries a chip, chip writes down the flow velocity differential pressure curve figure of this flow sensor, each start, machine all can be called in the curve map of sensor automatically, make the assembling of expiratory gas flow sensor and inspiratory flow sensor have interchangeability, but this flow sensor with chip has following shortcoming: owing to have chip, cause the cleaning and sterilizing inconvenience, realize difficulty and damage flow sensor easily, flow sensor is a consumptive material simultaneously, and configuring chip has increased cost.
Summary of the invention
Technical matters to be solved by this invention is, overcomes the deficiencies in the prior art, provides a kind of cost low and can reach the flow sensor and the flow sensor installation component of cleaning, sterilization back calibration-free function.
The technical solution adopted for the present invention to solve the technical problems is: a kind of flow sensor, comprise housing and diaphragm, this housing has internal face and outside wall surface, this internal face crosses the shell chamber that connects axially, this housing also has and is radially running through two force samples mouths that all are communicated with this shell chamber of this internal face and outside wall surface, this diaphragm places in this shell chamber, these two force samples mouths lay respectively at this diaphragm both sides in the axial direction, the outside wall surface of this housing has first and cooperates section and second to cooperate section, and this second cooperation section has anti-error piece installing.
Described anti-error piece installing is projection or pit.
Described anti-error piece installing has one or two.
A kind of flow sensor installation component, comprise apparatus body, the expiratory gas flow sensor, inspiratory flow sensor, expiration mouth piece and air-breathing mouth piece, this apparatus body has the end of expiration and suction end, this expiratory gas flow sensor and inspiratory flow sensor include housing and diaphragm, this housing has internal face and outside wall surface, this internal face crosses the shell chamber that connects axially, this housing also has and is radially running through two force samples mouths that all are communicated with this shell chamber of this internal face and outside wall surface, this diaphragm places in this shell chamber, these two force samples mouths lay respectively at this diaphragm both sides in the axial direction, the outside wall surface of this housing has first and cooperates section and second to cooperate section, first of this expiratory gas flow sensor and this inspiratory flow sensor cooperates section to removably connect with expiration mouth piece and air-breathing mouth piece respectively, second of this inspiratory flow sensor cooperates the corresponding junction of section and this suction end to be equipped with the first anti-error piece installing that is complementary, second of this expiratory gas flow sensor cooperates the corresponding junction of section and this expiration end to be equipped with the second anti-error piece installing that is complementary, and the number of the second anti-error piece installing of the first anti-error piece installing of this inspiratory flow sensor and this expiratory gas flow sensor, one of at least different in the shape and size.
First of the tight respectively cover expiratory gas flow of described expiration mouth piece and air-breathing mouth piece sensor cooperates first of section and inspiratory flow sensor to cooperate section.
One of at least be with the interface spiral cover in described expiratory gas flow sensor and the inspiratory flow sensor, this interface spiral cover is affixed with corresponding expiration end or suction end, and this interface spiral cover is provided with the block wall that presses corresponding flow sensor.
Described expiratory gas flow sensor and inspiratory flow sensor are with expiration interface spiral cover and air-breathing interface spiral cover respectively, and this expiration interface spiral cover and this air-breathing interface spiral cover are threaded with exhale end and suction end respectively.
Described expiration mouth piece and air-breathing mouth piece all have bead, and expiration interface spiral cover and air-breathing interface spiral cover also are enclosed within respectively on this expiration mouth piece and this air-breathing mouth piece, and each interface spiral cover also is provided with the limited wall corresponding with each bead.
The first anti-error piece installing of described inspiratory flow sensor is projection or pit, the first anti-error piece installing of suction end corresponds to pit or projection, the second anti-error piece installing of expiratory gas flow sensor is projection or pit, and the second anti-error piece installing of the end of exhaling corresponds to pit or projection.
The invention has the beneficial effects as follows, expiratory gas flow sensor and inspiratory flow sensor are equipped with anti-error piece installing, corresponding expiration end and suction end also are provided with the anti-error piece installing that is complementary, make the expiratory gas flow sensor can only install to the end of exhaling, inspiratory flow sensor can only install to suction end, thereby realize location and anti-error dress when expiratory gas flow sensor and inspiratory flow sensor are installed, do not need after flow sensor dismounting, cleaning and the sterilization to recalibrate; Do not need to be provided with chip, can realize anti-error dress, reduced cost by simple physical construction.
Description of drawings
Fig. 1 is the cut-open view of present embodiment flow sensor installation component;
Fig. 2 is the three-dimensional exploded view of present embodiment flow sensor installation component;
Fig. 3 is the stereographic map of present embodiment flow sensor installation component;
Fig. 4 and Fig. 5 are respectively the stereographic maps of two different angles of expiratory gas flow sensor;
Fig. 6 and Fig. 7 are respectively the stereographic maps of two different angles of inspiratory flow sensor;
Fig. 8 is the expiration end of reflection apparatus body and the synoptic diagram of suction end structure.
Embodiment
To shown in Figure 8, present embodiment flow sensor installation component comprises apparatus body 1, inspiratory flow sensor 2, expiratory gas flow sensor 3, expiration interface spiral cover 4, expiration mouth piece 5, air-breathing interface spiral cover 6 and air-breathing mouth piece 7 as Fig. 1.This apparatus body 1 has end of expiration 11 and suction end 12.This inspiratory flow sensor 2 has first housing 21 and primary diaphragm 22, this first housing 21 roughly is tubular, it has first internal face 211 and first outside wall surface 212, the internal face 211 of this first housing crosses one in the first shell chamber 23 that axially connects, this first housing 21 also has two first force samples mouths 24 that radially run through its first internal face 211 and first outside wall surface 212, these two first force samples mouths 24 all communicate with this first shell chamber 23, this primary diaphragm 22 is arranged in this first shell chamber 23 and can swings, and these two first force samples mouths 24 are in the both sides that axially lay respectively at this primary diaphragm 22, and this is the i.e. axis direction of this inspiratory flow sensor 2 axially.First outside wall surface 211 of first housing of this inspiratory flow sensor 2 has the first cooperation section 214 that is used for cooperating with air-breathing mouth piece 7, the second cooperation section 213 that is used for cooperating with suction end 12 and the cyclic ligand that cooperates with air-breathing interface spiral cover 6 and combines harmoniously 218, this first cooperation section 214 has groove 215, and this second cooperation section 213 has first projection 216 of a bulk.First outside wall surface 212 of this first housing 21 also is provided with inspiratory direction sign 217.The internal face 121 of this suction end 12 has two first pits 122 with two first projection 216 couplings, and the outside wall surface 123 of this suction end 12 has external thread 124.This air-breathing mouth piece 7 mates with first section of cooperation 213 of this air suction sensor 2, and this air-breathing mouth piece 7 has bead 71.This air-breathing interface spiral cover 6 has first through hole 61 that axially runs through, and the hole wall of this first through hole 61 is provided with limited wall 62, block wall 63 and internal thread.
This expiratory gas flow sensor 3 has second housing 31 and the secondary diaphragm, second housing 31 roughly is tubular, it has second internal face 311 and second outside wall surface 312, second internal face 311 of this second housing crosses one in the second shell chamber 33 that axially connects, this second housing 31 also has two second force samples mouths 34 that radially run through its second internal face 311 and second outside wall surface 312, these two second force samples mouths 34 all communicate with this second shell chamber 33, this secondary diaphragm is arranged in this second shell chamber 33 and can swings, and these two second force samples mouths 34 are in the both sides that axially lay respectively at this secondary diaphragm, and this is the i.e. axis direction of this inspiratory flow sensor axially.Second outside wall surface 312 of second housing of this expiratory gas flow sensor have be used for cooperating with expiration mouth piece 5 first cooperate section 314, be used for and exhale second cooperations that end 11 cooperates sections 313 and the cyclic ligand that is used for cooperating with expiration interface spiral cover 4 combines harmoniously 318, this first cooperation section 314 has groove 315, and this second cooperation section 313 has second projection 316 of two bulks.First outside wall surface 312 of this second housing 31 also is provided with expiration direction signs 317.The internal face 111 of this expiration end 11 has two second pits 112 with these two second projection 316 couplings, and the outside wall surface 113 of this expiration end 11 has external thread 114.This expiration mouth piece 5 mates with first section of cooperation 313 of expiratory gas flow sensor 3, and this expiration mouth piece 5 has bead 51.This expiration interface spiral cover 4 has second through hole 41 that axially runs through, and the hole wall of this second through hole 41 has limited wall 42, block wall and internal thread.
During installation, second of inspiratory flow sensor 2 cooperates the suction end 12 of section 213 load facility bodies 1, and one first projection 216 on this second cooperation section 213 embeds respectively in two first pits 122 of suction end 12.Second of expiratory gas flow sensor 3 cooperates the expiration end 11 of section 313 load facility bodies, and this second cooperates second projection 316 on the section 313 to embed in second pit 112 of the end 11 of exhaling.First of inspiratory flow sensor 2 cooperates section 214 to expose this suction end 11, first cooperate the O-ring seal of packing in the groove 215 of section 214 at this, and then put air-breathing mouth piece 7, realize that the removable seal between inspiratory flow sensor 2 and this air-breathing mouth piece 7 connects, make this air-breathing mouth piece 7 not move axially but can do and circumferentially rotate, and then make air-breathing mouth piece 7 have different setting angles relative to inspiratory flow sensor 2.First of expiratory gas flow sensor 3 cooperates section 314 to expose this expiration end 11, first cooperate the O-ring seal of packing in the groove 315 of section 314 at this, and then put air-breathing expiration mouth piece 5, realize removably connecting of expiratory gas flow sensor 3 and this expiration mouth piece 5, make this expiration mouth piece 5 not move axially but can do and circumferentially rotate relative to expiratory gas flow sensor 3.Air-breathing interface spiral cover 6 is enclosed within first of this air-breathing mouth piece 7 and inspiratory flow sensor and cooperates on the section 214, the external thread 124 of the internal thread of this air-breathing interface spiral cover 6 and suction end 12 screws, the block wall 63 of this air-breathing interface spiral cover 6 presses the cooperation wall 218 of inspiratory flow sensor 2 and realizes location to inspiratory flow sensor 2, and the limited wall 62 of this air-breathing interface spiral cover 6 blocks the bead 71 of this air-breathing mouth piece 7 and extracts out to prevent air-breathing mouth piece 7.Expiration interface spiral cover 4 is enclosed within second of this expiration mouth piece 5 and expiratory gas flow sensor 3 and cooperates on the section 314, the block wall of this expiration interface spiral cover 4 presses the cooperation wall 318 of expiratory gas flow sensor 3 and the bead 51 that realizes blocking this expiration mouth piece 5 in location to expiratory gas flow sensor 3, the limited wall 42 of this expiration interface spiral cover 4 is extracted out with the mouth piece 5 that prevents to exhale.
The utility model adopts two differential flow sensors 2,3 of diaphragm in Anesthesia machine (or lung ventilator) patient breathing circuit, carry out the control and the monitoring of tidal volume and flow velocity respectively, by feedback, contrast and check, farthest accurately the size of control tidal volume and reduction tidal volume and setting value are not inconsistent the risk of bringing harm to patient.Because the consistance that flow sensor is made can't satisfy the demand of itself high-acruracy survey, therefore just can use after each flow sensor all needs to demarcate, thereby obtain the pressure reduction current curve figure of this sensor, just can carry out the accurate measurement of tidal volume.
In the application of reality, whenever finish and to pull down flow sensor after the example operation and clean, sterilize, only need outward winding expiration interface spiral cover 4 and air-breathing interface spiral cover 6 can take out expiratory gas flow sensor 3 and inspiratory flow sensor 2 respectively, screw and can reload use, simple, convenient.This inspiratory flow sensor 2 and expiratory gas flow sensor 3 have inspiratory direction sign 217 and expiration direction signs 317 respectively, can remind operator's correspondence end 11 and suction end 12 of exhaling of packing into, and have the place of sign to be only correct mounting means up.Simultaneously inspiratory flow sensor and inspiratory flow sensor all have anti-error assembling structure, the inspiratory flow sensor end of exhaling of can not packing into, the expiratory gas flow sensor suction end of can not packing into.Inspiratory flow sensor 2 has one first projection 216, and there is one first pit 122 corresponding suction end 12 installation places; Expiratory gas flow sensor 3 has two second projectioies 316, the expiration of corresponding housing holds 11 installation places that two second pits 112 are arranged, and first projection 216 of inspiratory flow sensor 2 is bigger than second protruding 316 width of expiratory gas flow sensor 3, inspiratory flow sensor 2 suction end 12 of can only packing into, expiratory gas flow sensor 3 can only be packed into to exhale and be held 11, thereby what reach is air-breathing, the target of the anti-error dress of expiratory gas flow sensor, avoided air-breathing, the expiratory gas flow sensor needs the trouble of calibrated fluxes sensor because of adorning the anti-measurement that causes inaccurate (because not quite identical property that flow sensor self is made), and the method has realized dismounting, the function of cleaning and sterilization calibration-free.
In the utility model, inspiratory flow sensor has at least one first anti-error piece installing, and suction end also has at least one first anti-error piece installing of corresponding coupling with it.The expiratory gas flow sensor has at least one second anti-error piece installing, at least one second anti-error piece installing that the end of exhaling also has corresponding coupling with it, and first anti-error piece installing of inspiratory flow sensor and the second anti-error piece installing of expiratory gas flow sensor are different, and this is different can be presented as number difference, shape difference or size difference.This first, second anti-error piece installing can be aforesaid projection or pit, also can play the member of anti-error dress effect for other.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. flow sensor, comprise housing and diaphragm, this housing has internal face and outside wall surface, this internal face crosses the shell chamber that connects axially, this housing also has and is radially running through two force samples mouths that all are communicated with this shell chamber of this internal face and outside wall surface, and this diaphragm places in this shell chamber, and these two force samples mouths lay respectively at this diaphragm both sides in the axial direction, the outside wall surface of this housing has first and cooperates section and second to cooperate section, it is characterized in that: this second cooperation section has anti-error piece installing.
2. flow sensor according to claim 1 is characterized in that: described anti-error piece installing is projection or pit.
3. flow sensor according to claim 1 and 2 is characterized in that: described anti-error piece installing has one or two.
4. flow sensor installation component, comprise apparatus body, the expiratory gas flow sensor, inspiratory flow sensor, expiration mouth piece and air-breathing mouth piece, this apparatus body has the end of expiration and suction end, this expiratory gas flow sensor and inspiratory flow sensor include housing and diaphragm, this housing has internal face and outside wall surface, this internal face crosses the shell chamber that connects axially, this housing also has and is radially running through two force samples mouths that all are communicated with this shell chamber of this internal face and outside wall surface, this diaphragm places in this shell chamber, these two force samples mouths lay respectively at this diaphragm both sides in the axial direction, the outside wall surface of this housing has first and cooperates section and second to cooperate section, first of this expiratory gas flow sensor and this inspiratory flow sensor cooperates section to removably connect with expiration mouth piece and air-breathing mouth piece respectively, it is characterized in that: second of this inspiratory flow sensor cooperates the corresponding junction of section and this suction end to be equipped with the first anti-error piece installing that is complementary, second of this expiratory gas flow sensor cooperates the corresponding junction of section and this expiration end to be equipped with the second anti-error piece installing that is complementary, and the number of the second anti-error piece installing of the first anti-error piece installing of this inspiratory flow sensor and this expiratory gas flow sensor, one of at least different in the shape and size.
5. flow sensor installation component according to claim 4 is characterized in that: first of the tight respectively cover expiratory gas flow of described expiration mouth piece and air-breathing mouth piece sensor cooperates first of section and inspiratory flow sensor to cooperate section.
6. flow sensor installation component according to claim 4, it is characterized in that: be with one of at least the interface spiral cover in described expiratory gas flow sensor and the inspiratory flow sensor, this interface spiral cover is affixed with corresponding expiration end or suction end, and this interface spiral cover is provided with the block wall that presses corresponding flow sensor.
7. flow sensor installation component according to claim 6, it is characterized in that: described expiratory gas flow sensor and inspiratory flow sensor are with expiration interface spiral cover and air-breathing interface spiral cover respectively, and this expiration interface spiral cover and this air-breathing interface spiral cover are threaded with exhale end and suction end respectively.
8. flow sensor installation component according to claim 7, it is characterized in that: described expiration mouth piece and air-breathing mouth piece all have bead, expiration interface spiral cover and air-breathing interface spiral cover also are enclosed within respectively on this expiration mouth piece and this air-breathing mouth piece, and each interface spiral cover also is provided with the limited wall corresponding with each bead.
9. according to any described flow sensor installation component among the claim 4-8, it is characterized in that: the first anti-error piece installing of described inspiratory flow sensor is projection or pit, the first anti-error piece installing of suction end corresponds to pit or projection, the second anti-error piece installing of expiratory gas flow sensor is projection or pit, and the second anti-error piece installing of the end of exhaling corresponds to pit or projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720170903XU CN201184799Y (en) | 2007-11-14 | 2007-11-14 | Flow sensor and installation component thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720170903XU CN201184799Y (en) | 2007-11-14 | 2007-11-14 | Flow sensor and installation component thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201184799Y true CN201184799Y (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU200720170903XU Expired - Lifetime CN201184799Y (en) | 2007-11-14 | 2007-11-14 | Flow sensor and installation component thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934109A (en) * | 2009-07-02 | 2011-01-05 | 北京谊安医疗***股份有限公司 | Flow sampling device |
| WO2012045264A1 (en) * | 2010-10-09 | 2012-04-12 | 深圳迈瑞生物医疗电子股份有限公司 | Oxygen battery base assembly, oxygen battery assembly and anesthesia machine |
| CN102512172A (en) * | 2011-11-23 | 2012-06-27 | 深圳市科曼医疗设备有限公司 | Expiratory flow sensor and drainage device thereof |
| CN112345707A (en) * | 2020-11-16 | 2021-02-09 | 湖南碧臣环境能源有限公司 | Gas measuring device |
| CN116929469A (en) * | 2023-09-18 | 2023-10-24 | 四川蜀谷仪表科技有限公司 | Differential pressure flowmeter high-low pressure conversion method and differential pressure flowmeter flow measuring method |
-
2007
- 2007-11-14 CN CNU200720170903XU patent/CN201184799Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934109A (en) * | 2009-07-02 | 2011-01-05 | 北京谊安医疗***股份有限公司 | Flow sampling device |
| WO2012045264A1 (en) * | 2010-10-09 | 2012-04-12 | 深圳迈瑞生物医疗电子股份有限公司 | Oxygen battery base assembly, oxygen battery assembly and anesthesia machine |
| CN102512172A (en) * | 2011-11-23 | 2012-06-27 | 深圳市科曼医疗设备有限公司 | Expiratory flow sensor and drainage device thereof |
| CN102512172B (en) * | 2011-11-23 | 2014-02-12 | 深圳市科曼医疗设备有限公司 | Expiratory flow sensor and drainage device thereof |
| CN112345707A (en) * | 2020-11-16 | 2021-02-09 | 湖南碧臣环境能源有限公司 | Gas measuring device |
| CN116929469A (en) * | 2023-09-18 | 2023-10-24 | 四川蜀谷仪表科技有限公司 | Differential pressure flowmeter high-low pressure conversion method and differential pressure flowmeter flow measuring method |
| CN116929469B (en) * | 2023-09-18 | 2024-01-30 | 四川蜀谷仪表科技有限公司 | Differential pressure flowmeter high-low pressure conversion method and differential pressure flowmeter flow measuring method |
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| IP01 | Partial invalidation of patent right |
Commission number: 5W123460 Conclusion of examination: Maintain the validity of utility model patent right No. 200720170903. X on the basis of claims 4-9 Decision date of declaring invalidation: 20210922 Decision number of declaring invalidation: 52013 Denomination of utility model: Flow sensor and flow sensor installation components Granted publication date: 20090121 Patentee: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS Co.,Ltd. |
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| IP01 | Partial invalidation of patent right |